How Far Should 'Freedom' Go?

How far should we, as Christians, go when it comes to wiping out immorality and protecting the sanctity of the Christian faith in society? What I mean is should we respect freedom of choice and expression as much as possible, even to the extent of allowing those who are hateful towards God and Christians to speak and express themselves as they choose? For example, a man makes a film that includes a brief scene of ants crawling over a crucified Jesus (story link here); OR should we be as pro-active as possible to prevent things that are offensive to us from occurring and try to, basically, wipe them out because they are so ungodly, offensive, mocking, disrespectful to the Christian faith?

I believe in protecting freedom of speech, choice and expression as much as possible. I believe in doing this because God does the same for us when He gives us those very same freedoms. We choose to live for God. We are not forced to because that is how He wills is. We are people with free will, not robots.

But, at the same time, I feel conflicted about it. Here is an example (story link here): I feel that hanging up a painting of the Virgin Mary with elephant dung being plastered over it on purpose in a city museum in the name of 'art' is so offensive and disrespectful. It is never 'good' to do that, morally. It's one thing to hang up a painting like that in someone's home vs. a city's museum. I guess this would be a matter of private vs. public.

Should we as Christians respect a person's freedom of speech, choice, expression, religion, etc. to the point that we allow someone to do something like that despite how abhorred we are by it? They are not doing anything illegal nor are they physically hurting anyone by doing so. They are probably hurting someone morally I would imagine though. But, in a civilized society, we do not criminalize people based on morality, as long as physical violence and stealing are not involved.

So, my question is should we as Christians be focused on spreading God's love and truth in evangelizing and teaching others, as opposed to wiping out immorality in society by protesting and sending petitions? Or, should we do both at the same time? Or, does it depend on the situation?